This is a fairly new concept of mixing fat and stem cells for breast surgery. The article states that the potential of going up a couple sizes may not be there, only about one size, but the surgery can be repeated. Fat is taken from other parts of the body. The machine does the mixing...
There could be a dual purpose now to having liposuction, save those stem cells during the procedure as they could be used to generate new tissue or bone to be used in many reconstructive ways. Clinical trials are ongoing in other countries with fat cells, in in the US, pre-clinical research...